This talk revisits some old work on temporal reference in conditional statements where both antecedent and consequent are simply tensed, non-modal clauses, such as
| (1) | If the temperature rose, the bimetallic strip bent. |
| (2) | If the temperature rises, the bimetallic strip bends. |
Why, for example, does (1) have two readings where either the temperature rise precedes the strip bending or vice versa, whereas (2) only has the first reading.
I discuss an account of these and similar phenomena where tenses are deictically centered on times of information update implicit in the semantics of conditionals.